Cross-layer scheduling for multiuser H.264 video transmission over wireless networks

Cross-layer scheduling for multiuser H.264 video transmission over wireless networks
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无线网络上多用户H.264视频传输的跨层调度

DOI:
10.1049/iet-com.2009.0618
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发表时间:
2010-05
期刊:
影响因子:
1.6
通讯作者:
Lijun He
Lijun He
中科院分区:
计算机科学4区
文献类型:
--
作者:
Fan Li;Guizhong Liu;Lijun He

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264多用户视频传输的调度问题在无线网络中解决这项工作。提出了一种跨层算法,包括应用层(APP)、介质访问控制层(MAC)和物理层(PHY)。更特别的是,提出了一种压缩的方法来估计在APP中的每个数据包所造成的视频质量的贡献。其目标是通过满足延迟约束和所有用户之间的公平性,以最大限度地提高视频质量。该算法与新兴的无线标准,如IEEE 802.16和高速下行链路分组接入(HSDPA)兼容。仿真结果表明,该方案显着优于传统的调度方案在接收视频质量以及公平性。
The problem of the scheduling of the multiuser H.264 video transmission over wireless networks is addressed in this work. A cross-layer algorithm, including the application (APP) layer, the media access control (MAC) layer and the physical (PHY) layer, is presented. More especially, a compressed method is proposed to estimate the video quality contribution caused by each packet in the APP. The objective is to maximising video qualities by satisfying the delay constraint and the fairness among all users. The algorithm is compatible with the emerging wireless standards, such as IEEE 802.16 and high speed downlink packet access (HSDPA). Simulations show that the proposed scheme significantly outperforms the conventional scheduling schemes in terms of received video qualities as well as the fairness properties.
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